Use-after-free in Linux kernel - CVE-2024-26947

Vulnerability identifier: #VU92213

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-26947

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the __sync_icache_dcache() function in arch/arm/mm/flush.c. A local user can escalate privileges on the system.

Linux kernel
Oracle Linux
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Ubuntu
openEuler
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
linux-image-oem (Ubuntu package)
linux-image-lowlatency-hwe-18.04 (Ubuntu package)
linux-image-snapdragon-hwe-18.04 (Ubuntu package)
linux-image-virtual-hwe-18.04 (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-5.4.0-1136-aws (Ubuntu package)
linux-image-generic-hwe-18.04 (Ubuntu package)
linux-image-aws (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-oem-osp1 (Ubuntu package)
linux-image-5.4.0-1135-oracle (Ubuntu package)
linux-image-5.4.0-202-lowlatency (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-5.4.0-202-generic (Ubuntu package)
linux-image-5.4.0-1120-raspi (Ubuntu package)
linux-image-raspi-hwe-18.04 (Ubuntu package)
linux-image-5.4.0-1140-gcp (Ubuntu package)
linux-image-5.4.0-1083-ibm (Ubuntu package)
linux-image-5.4.0-1142-azure (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-lpae (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-5.4.0-202-generic-lpae (Ubuntu package)
linux-image-5.4.0-1045-iot (Ubuntu package)
linux-image-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1055-xilinx-zynqmp (Ubuntu package)
linux-image-ibm-lts-20.04 (Ubuntu package)
linux-image-bluefield (Ubuntu package)
linux-image-5.4.0-1096-bluefield (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-5.4.0-1124-kvm (Ubuntu package)
linux-image-oracle-lts-20.04 (Ubuntu package)
linux-image-aws-lts-20.04 (Ubuntu package)
linux-image-gcp-lts-20.04 (Ubuntu package)
linux-image-azure-lts-20.04 (Ubuntu package)
kernel-source
kernel
kernel-tools-devel
perf
kernel-debugsource
python3-perf-debuginfo
perf-debuginfo
kernel-tools
kernel-headers
kernel-devel
kernel-debuginfo
python3-perf
kernel-tools-debuginfo
kernel (Red Hat package)
kernel-rt (Red Hat package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-generic-64k (Ubuntu package)
linux-image-5.15.0-127-generic-64k (Ubuntu package)
linux-image-5.15.0-127-generic-lpae (Ubuntu package)
linux-image-5.15.0-127-lowlatency (Ubuntu package)
linux-image-5.15.0-127-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-127-generic (Ubuntu package)
linux-image-lowlatency-hwe-20.04 (Ubuntu package)
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package)
linux-image-5.15.0-1039-xilinx-zynqmp (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-5.15.0-1056-gkeop (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1066-raspi (Ubuntu package)
linux-image-5.15.0-1066-ibm (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-nvidia-lowlatency (Ubuntu package)
linux-image-5.15.0-1068-nvidia (Ubuntu package)
linux-image-5.15.0-1068-nvidia-lowlatency (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-5.15.0-1070-kvm (Ubuntu package)
linux-image-5.15.0-1070-gke (Ubuntu package)
linux-image-oracle-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1071-intel-iotg (Ubuntu package)
linux-image-5.15.0-1071-oracle (Ubuntu package)
linux-image-gcp-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1072-gcp (Ubuntu package)
linux-image-aws-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1073-aws (Ubuntu package)
linux-image-azure-lts-22.04 (Ubuntu package)
linux-image-azure-cvm (Ubuntu package)
linux-image-5.15.0-1078-azure (Ubuntu package)
linux-image-virtual-hwe-24.04 (Ubuntu package)
linux-image-generic-64k-hwe-24.04 (Ubuntu package)
linux-image-generic-hwe-24.04 (Ubuntu package)
linux-image-6.8.0-35-generic (Ubuntu package)
linux-image-6.8.0-35-generic-64k (Ubuntu package)
linux-image-6.8.0-35-lowlatency (Ubuntu package)
linux-image-6.8.0-35-lowlatency-64k (Ubuntu package)
linux-image-6.8.0-1004-gke (Ubuntu package)
linux-image-6.8.0-1005-raspi (Ubuntu package)
linux-image-oracle-64k (Ubuntu package)
linux-image-6.8.0-1006-oracle-64k (Ubuntu package)
linux-image-6.8.0-1006-oem (Ubuntu package)
linux-image-ibm-classic (Ubuntu package)
linux-image-ibm-lts-24.04 (Ubuntu package)
linux-image-6.8.0-1006-ibm (Ubuntu package)
linux-image-6.8.0-1006-oracle (Ubuntu package)
linux-image-oem-24.04a (Ubuntu package)
linux-image-oem-24.04 (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-6.8.0-1008-azure-fde (Ubuntu package)
linux-image-6.8.0-1008-azure (Ubuntu package)
Red Hat OpenShift Container Platform
linux-image-intel-iotg (Ubuntu package)
linux-image-intel (Ubuntu package)

Install update from vendor's website.

Linux kernel - addressed in versions 6.6.24, 6.7.12, 6.8.3
linux-image-oem (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 5.4.0.202.198
linux-image-lowlatency-hwe-18.04 (Ubuntu package) - update to Ubuntu Pro
linux-image-snapdragon-hwe-18.04 (Ubuntu package) - update to Ubuntu Pro
linux-image-virtual-hwe-18.04 (Ubuntu package) - update to Ubuntu Pro
linux-image-ibm (Ubuntu package) - addressed in versions Ubuntu Pro, 5.15.0.1066.62, 5.15.0.1066.69~20.04.1, 6.8.0-1006.6
linux-image-5.4.0-1136-aws (Ubuntu package) - addressed in versions Ubuntu Pro, 5.4.0-1136.146
linux-image-generic-hwe-18.04 (Ubuntu package) - update to Ubuntu Pro
linux-image-aws (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 5.15.0.1073.79~20.04.1
linux-image-gcp (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 5.15.0.1072.80~20.04.1
linux-image-oem-osp1 (Ubuntu package) - addressed in versions Ubuntu Pro, 5.4.0.202.198
linux-image-5.4.0-1135-oracle (Ubuntu package) - addressed in versions Ubuntu Pro, 5.4.0-1135.144
linux-image-5.4.0-202-lowlatency (Ubuntu package) - addressed in versions Ubuntu Pro, 5.4.0-202.222
linux-image-oracle (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 5.15.0.1071.77~20.04.1, 6.8.0-1006.6
linux-image-5.4.0-202-generic (Ubuntu package) - addressed in versions Ubuntu Pro, 5.4.0-202.222
linux-image-5.4.0-1120-raspi (Ubuntu package) - addressed in versions Ubuntu Pro, 5.4.0-1120.132
linux-image-raspi-hwe-18.04 (Ubuntu package) - update to Ubuntu Pro
linux-image-5.4.0-1140-gcp (Ubuntu package) - addressed in versions Ubuntu Pro, 5.4.0-1140.149
linux-image-5.4.0-1083-ibm (Ubuntu package) - addressed in versions Ubuntu Pro, 5.4.0-1083.88
linux-image-5.4.0-1142-azure (Ubuntu package) - addressed in versions Ubuntu Pro, 5.4.0-1142.149
linux-image-azure (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 5.15.0.1078.87~20.04.1, 6.8.0-1008.8
Red Hat OpenShift Container Platform - addressed in versions 4.14.35, 4.17.1
linux-image-generic (Ubuntu package) - addressed in versions 5.4.0.202.198, 5.15.0.127.126, 6.8.0-35.35
linux-image-generic-lpae (Ubuntu package) - addressed in versions 5.4.0.202.198, 5.15.0.127.126, 6.8.0-35.35
linux-image-lowlatency (Ubuntu package) - addressed in versions 5.4.0.202.198, 5.15.0.127.115, 6.8.0-35.35.1
linux-image-virtual (Ubuntu package) - addressed in versions 5.4.0.202.198, 5.15.0.127.126, 6.8.0-35.35
linux-image-5.4.0-202-generic-lpae (Ubuntu package) - update to 5.4.0-202.222
linux-image-5.4.0-1045-iot (Ubuntu package) - update to 5.4.0-1045.46
linux-image-xilinx-zynqmp (Ubuntu package) - addressed in versions 5.4.0.1055.55, 5.15.0.1039.43
linux-image-5.4.0-1055-xilinx-zynqmp (Ubuntu package) - update to 5.4.0-1055.59
linux-image-ibm-lts-20.04 (Ubuntu package) - update to 5.4.0.1083.112
linux-image-bluefield (Ubuntu package) - update to 5.4.0.1096.92
linux-image-5.4.0-1096-bluefield (Ubuntu package) - update to 5.4.0-1096.103
linux-image-raspi (Ubuntu package) - addressed in versions 5.4.0.1120.150, 5.15.0.1066.64, 6.8.0-1005.5
linux-image-raspi2 (Ubuntu package) - update to 5.4.0.1120.150
linux-image-kvm (Ubuntu package) - addressed in versions 5.4.0.1124.120, 5.15.0.1070.66, 6.8.0-35.35
linux-image-5.4.0-1124-kvm (Ubuntu package) - update to 5.4.0-1124.132
linux-image-oracle-lts-20.04 (Ubuntu package) - update to 5.4.0.1135.128
linux-image-aws-lts-20.04 (Ubuntu package) - update to 5.4.0.1136.133
linux-image-gcp-lts-20.04 (Ubuntu package) - update to 5.4.0.1140.142
linux-image-azure-lts-20.04 (Ubuntu package) - update to 5.4.0.1142.136
kernel-source - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
kernel - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
kernel-tools-devel - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
perf - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
kernel-debugsource - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
python3-perf-debuginfo - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
perf-debuginfo - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
kernel-tools - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
kernel-headers - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
kernel-devel - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
kernel-debuginfo - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
python3-perf - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
kernel-tools-debuginfo - addressed in versions 5.10.0-136.80.0.160, 5.10.0-209.0.0.117
kernel (Red Hat package) - addressed in versions 5.14.0-284.77.1.el9_2, 5.14.0-427.37.1.el9_4
kernel-rt (Red Hat package) - update to 5.14.0-284.77.1.rt14.362.el9_2
linux-image-lowlatency-64k (Ubuntu package) - addressed in versions 5.15.0.127.115, 6.8.0-35.35.1
linux-image-generic-64k (Ubuntu package) - addressed in versions 5.15.0.127.126, 6.8.0-35.35
linux-image-5.15.0-127-generic-64k (Ubuntu package) - addressed in versions 5.15.0-127.137, 5.15.0-127.137~20.04.1
linux-image-5.15.0-127-generic-lpae (Ubuntu package) - addressed in versions 5.15.0-127.137, 5.15.0-127.137~20.04.1
linux-image-5.15.0-127-lowlatency (Ubuntu package) - addressed in versions 5.15.0-127.137, 5.15.0-127.137~20.04.1
linux-image-5.15.0-127-lowlatency-64k (Ubuntu package) - addressed in versions 5.15.0-127.137, 5.15.0-127.137~20.04.1
linux-image-5.15.0-127-generic (Ubuntu package) - addressed in versions 5.15.0-127.137, 5.15.0-127.137~20.04.1
linux-image-lowlatency-hwe-20.04 (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-virtual-hwe-20.04 (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-oem-20.04d (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-oem-20.04c (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-oem-20.04b (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-oem-20.04 (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-generic-lpae-hwe-20.04 (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-generic-hwe-20.04 (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-generic-64k-hwe-20.04 (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package) - update to 5.15.0.127.137~20.04.1
linux-image-5.15.0-1039-xilinx-zynqmp (Ubuntu package) - update to 5.15.0-1039.43
linux-image-gkeop-5.15 (Ubuntu package) - update to 5.15.0.1056.55
linux-image-gkeop (Ubuntu package) - update to 5.15.0.1056.55
linux-image-5.15.0-1056-gkeop (Ubuntu package) - update to 5.15.0-1056.63
linux-image-raspi-nolpae (Ubuntu package) - update to 5.15.0.1066.64
linux-image-5.15.0-1066-raspi (Ubuntu package) - update to 5.15.0-1066.69
linux-image-5.15.0-1066-ibm (Ubuntu package) - addressed in versions 5.15.0-1066.69, 5.15.0-1066.69~20.04.1
linux-image-nvidia (Ubuntu package) - update to 5.15.0.1068.68
linux-image-nvidia-lowlatency (Ubuntu package) - update to 5.15.0.1068.68
linux-image-5.15.0-1068-nvidia (Ubuntu package) - update to 5.15.0-1068.69
linux-image-5.15.0-1068-nvidia-lowlatency (Ubuntu package) - update to 5.15.0-1068.69
linux-image-gke (Ubuntu package) - addressed in versions 5.15.0.1070.69, 6.8.0-1004.7
linux-image-gke-5.15 (Ubuntu package) - update to 5.15.0.1070.69
linux-image-5.15.0-1070-kvm (Ubuntu package) - update to 5.15.0-1070.75
linux-image-5.15.0-1070-gke (Ubuntu package) - update to 5.15.0-1070.76
linux-image-oracle-lts-22.04 (Ubuntu package) - update to 5.15.0.1071.67
linux-image-intel-iotg (Ubuntu package) - addressed in versions 5.15.0.1071.71, 5.15.0.1071.77~20.04.1
linux-image-5.15.0-1071-intel-iotg (Ubuntu package) - addressed in versions 5.15.0-1071.77, 5.15.0-1071.77~20.04.1
linux-image-5.15.0-1071-oracle (Ubuntu package) - addressed in versions 5.15.0-1071.77, 5.15.0-1071.77~20.04.1
linux-image-intel (Ubuntu package) - update to 5.15.0.1071.77~20.04.1
linux-image-gcp-lts-22.04 (Ubuntu package) - update to 5.15.0.1072.68
linux-image-5.15.0-1072-gcp (Ubuntu package) - addressed in versions 5.15.0-1072.80, 5.15.0-1072.80~20.04.1
linux-image-aws-lts-22.04 (Ubuntu package) - update to 5.15.0.1073.73
linux-image-5.15.0-1073-aws (Ubuntu package) - addressed in versions 5.15.0-1073.79, 5.15.0-1073.79~20.04.1
linux-image-azure-lts-22.04 (Ubuntu package) - update to 5.15.0.1078.76
linux-image-azure-cvm (Ubuntu package) - update to 5.15.0.1078.87~20.04.1
linux-image-5.15.0-1078-azure (Ubuntu package) - update to 5.15.0-1078.87~20.04.1
linux-image-virtual-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-64k-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-generic-hwe-24.04 (Ubuntu package) - update to 6.8.0-35.35
linux-image-6.8.0-35-generic (Ubuntu package) - update to 6.8.0-35.35+1
linux-image-6.8.0-35-generic-64k (Ubuntu package) - update to 6.8.0-35.35+1
linux-image-6.8.0-35-lowlatency (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-35-lowlatency-64k (Ubuntu package) - update to 6.8.0-35.35.1
linux-image-6.8.0-1004-gke (Ubuntu package) - update to 6.8.0-1004.7
linux-image-6.8.0-1005-raspi (Ubuntu package) - update to 6.8.0-1005.5
linux-image-oracle-64k (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oracle-64k (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oem (Ubuntu package) - update to 6.8.0-1006.6
linux-image-ibm-classic (Ubuntu package) - update to 6.8.0-1006.6
linux-image-ibm-lts-24.04 (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-ibm (Ubuntu package) - update to 6.8.0-1006.6
linux-image-6.8.0-1006-oracle (Ubuntu package) - update to 6.8.0-1006.6
linux-image-oem-24.04a (Ubuntu package) - update to 6.8.0-1006.6+1
linux-image-oem-24.04 (Ubuntu package) - update to 6.8.0-1006.6+1
linux-image-azure-fde (Ubuntu package) - update to 6.8.0-1008.8
linux-image-6.8.0-1008-azure-fde (Ubuntu package) - update to 6.8.0-1008.8
linux-image-6.8.0-1008-azure (Ubuntu package) - update to 6.8.0-1008.8

• https://git.kernel.org/stable/c/0c027c2bad7f5111c51a358b5d392e1a695dabff
• https://git.kernel.org/stable/c/9f7ddc222cae8254e93d5c169a8ae11a49d912a7
• https://git.kernel.org/stable/c/fb3a122a978626b33de3367ee1762da934c0f512
• https://git.kernel.org/stable/c/0c66c6f4e21cb22220cbd8821c5c73fc157d20dc
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.24
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.12
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.3

• Use-after-free in Linux kernel arm mm
• openEuler 22.03 LTS SP1 update for kernel
• openEuler 22.03 LTS SP3 update for kernel
• Ubuntu update for linux
• Ubuntu update for linux-oem-6.8
• Ubuntu update for linux-azure
• Ubuntu update for linux-oracle
• Red Hat Enterprise Linux 9 update for kernel
• Red Hat Enterprise Linux 9 update for kernel-rt
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.14
• Red Hat Enterprise Linux 9 update for kernel
• Multiple vulnerabilities in Oracle Linux
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.17
• Ubuntu update for linux
• Ubuntu update for linux-aws
• Ubuntu update for linux
• Ubuntu update for linux-bluefield
• Ubuntu update for linux-aws
• Ubuntu update for linux-hwe-5.15
• Ubuntu update for linux-iot
• Ubuntu update for linux-raspi-5.4
• Ubuntu update for linux-intel-iotg
• Ubuntu update for linux-azure
• Ubuntu update for linux-azure-5.15
• Ubuntu update for linux-azure
• Ubuntu update for linux-azure-5.4
• Ubuntu update for linux-xilinx-zynqmp